| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 3907 |
65.7%
|
| 2 | I no longer smoke | 791 |
13.3%
|
| 3 | No, I smoke but I never mix tobacco with other drugs | 893 |
15%
|
| 4 | Yes, but only once or twice | 177 |
3%
|
| 5 | Yes, I have mixed tobacco with other drugs more than twice | 176 |
3%
|
| Sysmiss | 101 |